Retire the site

* Update messaging.
* Remove static/CNAME and .github/workflows/deploy.yml.

.github/workflows/deploy.yml

@@ -1,52 +0,0 @@
-name: Deploy to GitHub Pages
-
-on:
-  push:
-    branches:
-      - main
-    paths-ignore:
-      - '**/README.md'
-      - '**/.github/ISSUE_TEMPLATE/**'
-
-jobs:
-  build:
-    name: Build Docusaurus
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
-        with:
-          fetch-depth: 0
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
-        with:
-          node-version: 18
-          cache: yarn
-
-      - name: Install dependencies
-        run: yarn install --frozen-lockfile
-      - name: Build website
-        env:
-          NODE_OPTIONS: "--max_old_space_size=10240"
-        run: yarn build --no-minify
-
-      - name: Upload Build Artifact
-        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3
-        with:
-          path: build
-
-  deploy:
-    name: Deploy to GitHub Pages
-    needs: build
-
-    permissions:
-      pages: write
-      id-token: write
-    
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-
-    runs-on: ubuntu-latest
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4